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Removing dependency on Bounce library saves 190 bytes. #34

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Removing dependency on Bounce library saves 190 bytes. #34

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30 changes: 25 additions & 5 deletions printer.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,6 @@
#include <EEPROM.h>

#include <SoftwareSerial.h>
#include <Bounce.h>

// -- Settings for YOU to change if you want

Expand Down Expand Up @@ -278,14 +277,35 @@ inline void printFromDownload() {
}


// -- Check for new data, print if the button is pressed.
byte counter = 0; // how many times we have seen new value
byte reading; // the current value read from the input pin
byte current_state = LOW; // the debounced input value
long timeOfLastSample = 0;

bool buttonPressed() {
if (millis() != timeOfLastSample) {
reading = digitalRead(buttonPin);
if (reading == current_state && counter > 0) {
counter--;
}
if (reading != current_state) {
counter++;
}
if (counter >= 5) {
counter = 0;
current_state = reading;
return true;
}
timeOfLastSample = millis();
}
return false;
}

Bounce bouncer = Bounce(buttonPin, 5); // 5 millisecond debounce
// -- Check for new data, print if the button is pressed.

void loop() {
if (downloadWaiting) {
bouncer.update();
if (bouncer.read() == HIGH) {
if (buttonPressed()) {
printFromDownload();
}
} else {
Expand Down